22913312 has 24 divisors (see below), whose sum is σ = 45659376. Its totient is φ = 11317312.

The previous prime is 22913311. The next prime is 22913329. The reversal of 22913312 is 21331922.

It is not an unprimeable number, because it can be changed into a prime (22913311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1658 + ... + 6969.

It is an arithmetic number, because the mean of its divisors is an integer number (1902474).

Almost surely, 2^22913312 is an apocalyptic number.

It is an amenable number.

22913312 is a deficient number, since it is larger than the sum of its proper divisors (22746064).

22913312 is an equidigital number, since it uses as much as digits as its factorization.

22913312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8720 (or 8712 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 22913312 is about 4786.7851424521. The cubic root of 22913312 is about 284.0289595543.

The spelling of 22913312 in words is "twenty-two million, nine hundred thirteen thousand, three hundred twelve".